/Favorites - Slick player for Soundcloud favorites
FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
DaftCloud - DaftCloud is a free and wonderful designed SoundCloud App for macOS.
Pacemaker - Create and share mixtapes with friends
Hermes - Pandora Client for OS X
Boil the Frog - Create a seamless playlist between any two artists